CVE-2018-11069 : Exploit Details and Defense Strategies

RSA BSAFE SSL-J versions prior to 6.2.4 have a Covert Timing Channel vulnerability during RSA decryption, potentially allowing a remote attacker to retrieve an RSA key.

Understanding CVE-2018-11069

This CVE involves a vulnerability in RSA BSAFE SSL-J that could be exploited by attackers to recover an RSA key.

What is CVE-2018-11069?

The vulnerability in RSA BSAFE SSL-J before version 6.2.4 allows for a Covert Timing Channel during RSA decryption.
This vulnerability is also known as a Bleichenbacher attack on RSA decryption.
An attacker exploiting this flaw could potentially retrieve an RSA key remotely.

The Impact of CVE-2018-11069

CVSS Base Score: 5.9 (Medium Severity)
Attack Vector: Network
Attack Complexity: High
Confidentiality Impact: High
Integrity Impact: None
Privileges Required: None
User Interaction: None
Scope: Unchanged
Vector String: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Technical Details of CVE-2018-11069

Vulnerability Description

The vulnerability lies in the RSA BSAFE SSL-J versions prior to 6.2.4, allowing for a Covert Timing Channel during RSA decryption.

Affected Systems and Versions

Affected Product: RSA BSAFE SSL-J
Vendor: Dell EMC
Vulnerable Versions: Less than 6.2.4

Exploitation Mechanism

Attackers can exploit the Covert Timing Channel vulnerability during RSA decryption to potentially retrieve an RSA key.

Mitigation and Prevention

Immediate Steps to Take

Update RSA BSAFE SSL-J to version 6.2.4 or higher to mitigate the vulnerability.
Monitor network traffic for any suspicious activity that could indicate exploitation.

Long-Term Security Practices

Regularly update and patch software to prevent known vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Stay informed about security updates and patches released by Dell EMC for RSA BSAFE SSL-J.